ILD300 Professional Rack Mountable Audio Induction Loop Driver 4.9Arms for areas up to 420m sq ILD300 Professional Rack Mountable Audio Induction Loop Driver 4.9Arms for areas up to 420m sq
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  • ILD300 Professional Rack Mountable Audio Induction Loop Driver 4.9Arms for areas up to 420m sq - Image 1
  • ILD300 Professional Rack Mountable Audio Induction Loop Driver 4.9Arms for areas up to 420m sq - Image 2
  • ILD300 Professional Rack Mountable Audio Induction Loop Driver 4.9Arms for areas up to 420m sq - Image 3

Description

Ampetronic
ILD300 Professional Rack Mountable Audio Induction Loop Driver   4.9Arms   for areas up to 420m2


The ILD300 is a professional audio induction loop driver capable of driving loop areas in excess of 400m2 with an unsurpassed clarity of sound for both music and speech for superior intelligibility.
Based on proven and highly reliable technology it is backed by an unrivalled 5 year warranty and free technical support. Improved power output provides outstanding value without compromise.
It has all the usual high quality features found on Ampetronic equipment such as metal loss correction and speech optimised gain control.
The ILD300 is very compact and elegant, suitable for freestanding, wall mounting or rack mounting.

 
 

Features

  • Area coverage to >400 m2
  • Low lifetime cost
    Excellent proven reliability 
    5 year warranty
  • Unparalleled sound quality 
    Excellent intelligibility
    Speech optimised gain control 
    High voltage headroom avoids high frequency clipping
  • Metal loss corrector corrects frequency dependent loss from metal structures
  • Very compact: 215 x 220 x 44 mm
  • Microphone (XLR) and line inputs
  • Extensive input adaptors available for any audio input requirements
  • Free technical support line for advice, design and install
 

Applications include

  • Conference facilities
  • Theatres
  • Sports halls
  • Educational environments
  • Places of worship
  • Lecture Halls
 

Equipment supplied as standard with the ILD300

  • Handbook and installation instructions
  • 197 x 252mm loop system present sign (deaf logo)
  • Region specific mains cable
  • Loop connector
 

ILD300 optional accessories

Ashton Audio can supply an extensive range of additional accessories for installation – discuss your requirements with our sales team and we will provide materials and equipment to suit your application.
Input adaptorsA range of input adaptors and interface cables to accept most audio source inputs, see table below
Installation Accessories• 18mm x 0.25mm copper tape
• PVC extrusion to protect copper tape
• Installation / warning tape to fix cable or tape to a floor
Wall mount bracketsWML1-U
Rack mount bracketsRM-1U
Phase shifterSP5 for an array system requires a design which can be provided by Ampetronic

 

Input adaptors and preamplifiers

By using the appropriate input adaptor or preamplifier the ILD300 will accept multiple additional inputs or audio inputs 
from other sources:
Input typeAdaptor
Additional microphone and / or line inputsMP221 preamps can drive up to 2 mics + 2 line inputs
100V line input
Low impedance speaker line
Line Level
ATT-UJ & ATT-UX transformer isolated attenuators
Unbalanced microphonesMAT1 adaptor

 

Standards compliance

The ILD300 is CE marked to all relevant safety and EMC standards. 
All Ampetronic amplifiers can be used to create a system that meets the requirements of IEC118-4 and the relevant recommendation of BS7594, however the design and installation of the system is equally important to meet these Induction Loop standards.
 
 

Perimeter Loops – Area Coverage (maximum)

Room aspect ratio1:12:13:1
Maximum area m2250310420
For any Induction Loop System, area coverage is dependent on several factors. Please check these assumptions and contact Ashton Audio for advice if required:
  • Loop must be 1-2m above or below the receiver height
  • There should be no metal structures in the plane of the loop
  • Sufficient voltage to drive the loop – check the cable table below
 

Maximum Cable Length

The ILD300 is designed for SINGLE TURN loops for optimum audio quality.
  • Loops with DC resistance from 0.2 to 1.2Ω
  • Impedance up to a maximum of 1.3Ω
Maximum cable length is dependent on cable type and on the application:
Cable typeMaximum Cable Length (m)
 Normal Use*Transient Speech*
1.0mm2 copper4957
2.5mm2 copper6785
4.0mm2 copper7091
1.8mm2 flat copper tape87101
* Short term speech (e.g. service counter, airport PA system) can cope with limited clipping at high frequencies – Ampetronic recommends delivery of full current up to 1.2kHz for these applications. 
Longer term usage or signals with music or high quality audio must deliver full current to at least 1.6kHz to prevent fatigue and give acceptable intelligibility. Many commercially available systems do not deliver sufficient voltage to reproduce critical high frequencies – ask us for more details.
 
 

ILD300 Specifications


INPUTS

Power35 W 230 V AC nominal, 45-65 Hz [120 V option available]
Power switch and LED indicator on front panel
Microphone inputXLR balanced microphone input for 200-600 Ω microphones;
15 dB user selectable gain boost; + 15 V DC phantom power (selectable); sensitivity – 70 dBu; front panel recessed gain control
Line input6.4 mm jack socket balanced line input; sensitivity – 30 dBu; overload protected; front panel recessed gain control
Slave I/O6.4 mm jack insert point for connection of SP5 phase shifter
0 dBu signal can be used for recording

 

OUTPUTS

Drive voltage6.4 Vrms (9.0V peak) at maximum output current
Drive current• 4.9 Arms (7.0 Apk) continuous 1 kHz sine wave
• Short term peaks >10 A
• Front panel recessed control 
• Drive current indicated on 4-LED display in 3 dB increments
Loop connectorWieland ST17/2 (supplied)
Loop MonitorProvides access to actual audio signal in loop
3.5 mm stereo headphone connector on front panel

 

AUDIO SYSTEM

Freq. response80 Hz to 6.5 kHz
DistortionTHD+N
Automatic Gain ControlThe AGC is optimised for speech. Range >36 dBu
Front panel recessed input level control
Metal loss correctionCorrects system frequency response due to metal structures in a building. Gain constant at 1 kHz, adjustable gain slope from 
0 to 3 dB per octave
This does not compensate for signal loss from metal structures, which can be significant

 

ADDITIONAL FUNCTIONS

Fault MonitoringThree LED fault indicators on the front panel:
• Overload – delivering over the rated current
• Overheat – unit is too hot (mutes output signal)
• Loop error – short circuit / open circuit error
AncillaryTo supply Ampetronic ancillary units
±15 V DC 0.15 A power outlet on rear panel
CoolingCooling is by natural convection from product casing

 

PHYSICAL

DimensionsHalf width 1U 19" rack mount
Width 215 mm Depth 220 mm Height 44 mm
Mounting options• Freestanding
• 1U 19" rack mount (requires additional rack tray)
• Wall mounting (requires additional brackets)
Weight2.25kg
EnvironmentIP 20 protection; 20 to 90% relative humidity; 0 to 35 ºC


Ashton Audio in conjunction with Ampetronic can design your induction loop system for you.  Simple induction loop designs are free, complex array systems will be charged for at a nominal rate.  You can request a design through our 'Contact Us' Enquiry Form.

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